A complex chemistry is most related to maintaining a stable internal environment.
I think its true because the tornado is caused by the clouds.
That waste product would be carbon dioxide.
Oats are pretty high in fiber i dont know what crop that is though probably wheat?
The answer is decomposers.
After the death of producers and consumers, decomposers (such as Actinobacteria, or other bacteria which are prokaryotes) eat that dead organisms and carbon, nitrogen, and other elements are released into the environment. It should be taken into consideration that eukaryotes (such as fungi) can be decomposers as well.